HP Dv4-1124nr HP Pavilion dv4 Entertainment PC - Maintenance and Service Guide - Page 112

Audio board, Display assembly see

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Audio board Description Audio board (includes audio connectors, infrared lens, and audio board cable) Spare part number 486840-001 Before removing the audio board, follow these steps: 1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system. 2. Disconnect all external devices connected to the computer. 3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer. 4. Remove the battery (see Battery on page 55). 5. Remove the following components: a. Hard drive (see Hard drive on page 59) b. WLAN cover (see WLAN module on page 62) c. Optical drive (see Optical drive on page 57) d. Keyboard (see Keyboard on page 72) e. Keyboard cover (see Keyboard cover on page 76) f. Display assembly (see Display assembly on page 83) g. Top cover (see Top cover on page 95) Remove the audio board: 1. Disconnect the audio board cable (1) from the system board, and remove the cable from the audio board (2). 2. Remove the two Phillips PM2.5×4.0 screws (3) that secure the audio board to the computer. 104 Chapter 4 Removal and replacement procedures

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Audio board
Description
Spare part number
Audio board
(includes audio connectors, infrared lens, and audio board cable)
486840-001
Before removing the audio board, follow these steps:
1.
Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2.
Disconnect all external devices connected to the computer.
3.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4.
Remove the battery (see
Battery
on page
55
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
59
)
b.
WLAN cover (see
WLAN module
on page
62
)
c.
Optical drive (see
Optical drive
on page
57
)
d.
Keyboard (see
Keyboard
on page
72
)
e.
Keyboard cover (see
Keyboard cover
on page
76
)
f.
Display assembly (see
Display assembly
on page
83
)
g.
Top cover (see
Top cover
on page
95
)
Remove the audio board:
1.
Disconnect the audio board cable
(1)
from the system board, and remove the cable from the audio
board
(2)
.
2.
Remove the two Phillips PM2.5×4.0 screws
(3)
that secure the audio board to the computer.
104
Chapter 4
Removal and replacement procedures